Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5233265 | Photoconductive imaging apparatus | Yukio Takasaki, Kazutaka Tsuji, Tatsuo Makishima, Tadaaki Hirai, Sachio Ishioka +17 more | 1993-08-03 |
| 4952839 | Photoconductive device and method of operating the same | Kenkichi Tanioka, Mitsuo Kosugi, Junichi Yamazaki, Keiichi Shidara, Kazuhisa Taketoshi +16 more | 1990-08-28 |
| 4888521 | Photoconductive device and method of operating the same | Kenkichi Tanioka, Keiichi Shidara, Tatsuro Kawamura, Junichi Yamazaki, Eikyuu Hiruma +16 more | 1989-12-19 |
| 4866332 | Target of image pickup tube | Yukio Takasaki, Tatsuo Makishima, Kazutaka Tsuji, Tadaaki Hirai, Eisuke Inoue +9 more | 1989-09-12 |
| 4445131 | Photoconductive image pick-up tube target | Yasuhiko Nonaka, Keiichi Shidara | 1984-04-24 |
| 4330733 | Photoconductive target | Keiichi Shidara, Tatsuro Kawamura, Eikyu Hiruma, Yohitsumu Ikeda, Kenkichi Tanioka +5 more | 1982-05-18 |
| 4307319 | Semiconductor layer of oxygen depletion type cerium oxide or lead oxide | Motoyasu Terao, Tadaaki Hirai, Eiichi Maruyama, Hideaki Yamamoto, Tsutomu Fujita +1 more | 1981-12-22 |
| 4277515 | Targets for use in photoconductive image pickup tubes | Yasuhiko Nonaka, Keiichi Shidara | 1981-07-07 |
| 4219831 | Targets for use in photoconductive image pickup tubes | Yasuhiko Nonaka, Keiichi Shidara | 1980-08-26 |